Device for cleaning traveling tables



`Julne 28, 1932.

c. HEUZE DEVICE FO'R CLEANING TRAVELING TABLES Filed F'eb.` 18: 1929 ulnII-lfllllll Patented June 2a, lesa UNr CHARLES HEUZE, F AUVELAIS, BELGIUM DEVICE FOR CLEANNG TRVELING TABLES Application filed February 18, 1929, Serial 110.340,911, and in Belgium January7 22, 1929.

This invention relates to a device for automatically cleaning traveling tables, on which materials are fastened for subjecting them to certain operations. This device can be apf plied very advantageously, for instance, in the case when said tables support plates of glass to be polished, which have to be turned over after one of their faces has been polished.

f Other details and features of the invention will become evident in the course of the description of the drawing annexed to the pres-` ent specification, in which drawing:

Figures l and 2 are part-sectional perspec- T tive views showing the crank discs that carry the frame arranged, respectively, in planes perpendicular to and parallel with the surface of the tables; while Fig. 3 shows a modification in which the frame has a variable zu speed movement imparted to it. Fig. 4 is a schematic plan view and Fig. 5 is a schematic side view of the mechanism for moving the frame of Fig. 3 from one side of the tables.

In these figures like reference characters denote like part-s.

Figure 1 shows tables 2 traveling continuously in the direction of the arrow X. Above these tables is a frame 3, carried by crank discs 4, 5, 6 and 7. This frame 3, in turn, carries by means of hinges 8a, a certain number of blades 8. The frame 3 is moved transversely in respect to the direction of the movement of the tables, by means of the rotation of the crank discs 4, 5, 6, and 7. The

discs 4 and 5 arranged on opposite sides of the tables 2, are positively driven by means of a mechanical transmission actuated by a motor 9. The discs 6 and 7 are obliged to turn owing to their connection with the frame 3.

In this arrangement, the discs, as well as the frame, move in planes perpendicular to the surface of the tables to be cleaned. Owing to this motion, said surface is scraped l" by the lower edges 8b of the blades 8, said edges being arranged obliquely in respect to the direction of movement of the tables, and the blades themselves also being arranged obliquely in respect to said surface. The

transverse motion of the frame and the oblique direction of the lower edgesSb cause the removal of the scraped matter, in the direction ofthe arrow Y. This removal is also facilitated by the presence of the shields 8d fixed on the blades 8 perpendicularly to the 55 latter.

' According to the embodiment shown in Figure 2, the frame 3 is mounted on crank discs arranged in planes parallel instead of perpendicular to the surface lof the tables 2. no The blades 8 are also hinged at 8a on this frame.

The discs 4 and 5 are positively driven by a mechanical connection such as 10. f ,According to Figs. V3, 4 and 5, the frameis e5 carried by crank discs 4 and 5 arranged in planes parallel to the surface of the tables to be cleaned and turning with a uniformly variable movement of rotation. n

This uniformly variable motion is ob-r 7o tained, for instance, b means of worms 11a and 11b fixed on a sha t 11 having a uniform movementof rotation, said worms meshing with worm wheels l2 and 13 on the pivots 12a and 13a of which the gears 14 and 15 are 7e mounted eccentrically. The centers of these gears are respectively at 14a and 15a. The latter gears mesh with gear wheels 16-and 17 mounted eccentrically on the pivots 4wandv 5a of the crank discs 4 and 5.

The gearings 16 and 17 have the same diameter as the gearings 14 and 15. As shown in Fig. 4, the gearing 16 has itsaXis at- 16a at a distance from the pivot 4a which is. equal to the distance between the axis 14a and the 85 pivot 12a. Similarly, the distance from the axis of the gearing 17 to the pivot 5a is equal to the distance between the aXis 15a and the pivot 13e.

The uniform rotation of the gearing 12 90 effects a rotation of the gear 14 around the pivot 12a. Since the gear 14 meshes with the gear 16, the latter is displaced by rotation around the pivot 4a. It will be clear that the rate of rotation of the pivot 4a will vary in 95 accordance with the variation of the distances between the point of engagement of the gears 14 and 16 and the pivots 12a and 4a.

By this arrangement, the frame 3 can receive a lower speed during the forward 190 stroke (arrow Z) than during the return stroke. The speed of the return stroke, for instance, may be calculated so as to be greater than the speed of travel of the tables and notablyabout double this speed. The speed of the frame 3 is greater when the blades are not scraping, than When they are scraping.

To obtain a better cleaning of the surface of the tables 2, there may be arranged behind the scraper blades 8, a brush 18 having a transverse motion in respect to that of the tables 2. This brush is mounted for instance on the frame 3 by means of arms 3a hinged on said frame, so that the brush may have aslight vertical movement to compensate the Wear of the bristles.

Finally, the invention provides that to render the surface of the tables quite clean, a

c suction pipe such as 19 may be arranged behind the blades 8 or behind the brush 18.

It is evident that the invention is not eX- clusively limited to the embodiments shown, but that many alterations may be made in the shape, the arrangement and the construction of the parts represented, Withont'exceeding the scope of the invention.

What I claim is:

1. A device for cleaning traveling tables, comprising at least one scraping blade arranged in cont-act vvith the surface of the tables, a frame bearing said blade, and means for automatically reciprocating said frame at a greater speed When the blade is not scraping than When it is scraping.

2. yA device for cleaning traveling tables, comprising at least one scraping blade arranged inV contact With the surface of the tables, a frame bearing said blade, crank-discs carrying said frame and disposed in a plane transverse to a vertical plane passing through the direction of travel of the tables, gears eccentrically mounted on the pivots of the crank-discs, other gears meshing with the first-named gears and mounted eccentrically on other pivots, and means for imparting a uniform rotary motion to the last-named pivots.

3. A device for cleaning traveling tables, comprising at least one scraping blade arranged in contact With the surface of the tables, shields mounted on the blade perpendicularly to the latter' to push the scraped-off matter towards one edge of the tables, a frame bearing said blade, crank-discs carrying said frame and disposed in a plane transverse to a vertical plane passing through the direction of travel of the tables, and means for rotating the crank-discs.

CHARLES HEUZE. 

